2019975975

素因数分解:

$3^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{52501}}^1$

素因数の和:52542

約数の個数: 60

約数和(自身を含む): 3938700040

約数和(自身を除く): 1918724065

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 81, 95, 135, 171, 225, 285, 405, 475, 513, 675, 855, 1425, 1539, 2025, 2565, 4275, 7695, 12825, 38475, 52501, 157503, 262505, 472509, 787515, 997519, 1312525, 1417527, 2362545, 2992557, 3937575, 4252581, 4987595, 7087635, 8977671, 11812725, 14962785, 21262905, 24937975, 26933013, 35438175, 44888355, 74813925, 80799039, 106314525, 134665065, 224441775, 403995195, 673325325, 2019975975]

約数ペア:

[(1, 2019975975), (3, 673325325), (5, 403995195), (9, 224441775), (15, 134665065), (19, 106314525), (25, 80799039), (27, 74813925), (45, 44888355), (57, 35438175), (75, 26933013), (81, 24937975), (95, 21262905), (135, 14962785), (171, 11812725), (225, 8977671), (285, 7087635), (405, 4987595), (475, 4252581), (513, 3937575), (675, 2992557), (855, 2362545), (1425, 1417527), (1539, 1312525), (2025, 997519), (2565, 787515), (4275, 472509), (7695, 262505), (12825, 157503), (38475, 52501)]